export declare const ack: () => AMQPSubscriberResponse

export declare const nack: (options?: NackOptions) => AMQPSubscriberResponse

export declare const reject: (options?: RejectOptions) => AMQPSubscriberResponse

export declare const isAMQPSubscriberResponse: (u: unknown) => u is AMQPSubscriberResponse

export type AMQPSubscriberResponse = Ack | Nack | Reject

export interface Ack {
  readonly [TypeId]: TypeId
  readonly _tag: "Ack"
}

export interface Nack {
  readonly [TypeId]: TypeId
  readonly _tag: "Nack"
  readonly allUpTo?: boolean | undefined
  readonly requeue?: boolean | undefined
}

export interface NackOptions {
  readonly allUpTo?: boolean
  readonly requeue?: boolean
}

export interface Reject {
  readonly [TypeId]: TypeId
  readonly _tag: "Reject"
  readonly requeue?: boolean | undefined
}

export interface RejectOptions {
  readonly requeue?: boolean
}

export declare const TypeId: typeof TypeId

export type TypeId = typeof TypeId